发电锅炉材料与防护涂层的磨蚀机制与研究展望

张世宏, 胡凯, 刘侠, 杨阳

Corrosion-Erosion Mechanism and Research Prospect of Bare Materials and Protective Coatings for Power Generation Boiler

ZHANG Shihong, HU Kai, LIU Xia, YANG Yang

表4 锅炉防护领域热喷涂技术比较[32,113]

Table 4 Comparison of thermal spray technology in the field of boiler protective[32,113]

Technology Flame property Coating property Temperature / oC Velocity / (m·s-1) Porosity / % Bonding strength / MPa AS[32] > 6000 50-100 10-20 25-50 PS[32] 10000-15000 300-1000 5-10 20-60 D-gun[113] 5500 > 2500 < 2 > 70 HVOF[113] 2500-5500 500-1200 < 2 > 70 CS[32] 0-700 300-1200 < 5 > 70